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Introducing Podium Points! Get rewarded for every dollar you spend. Click the Rewards button at the bottom of the page!
A complete AT2 system for the 2017-on Ninja 650 and Z650, from the stainless headers back to a matte carbon fiber muffler. It takes the exhaust from 17.8 lb stock to 8.0 lb, and on Yoshimura's dyno it added 6.5% peak horsepower and 3.1% peak torque. The faceted tip and Works Finish stainless are the AT2's signature look. It is loud: Yoshimura measured 103 dB at 5,000 rpm with the INS-20-K low-volume insert fitted, against 93 dB stock.
Fits Kawasaki Ninja 650 / Z650 2017–2026
We sell this part for closed-course competition use only, and do not ship it to California. Yoshimura makes it as a Race Series part: for closed course competition only, not intended for street use.
| Bike | Years | Notes |
|---|---|---|
| Kawasaki Ninja 650 | 2017–2026 | — |
| Kawasaki Z650 | 2017–2026 | — |
Check the fitment list for your exact bike and year, and order every part it says this one needs.
| Line | AT2 |
|---|---|
| Yoshimura series | Race |
| Type | Full |
| Header | Stainless |
| Muffler sleeve | Carbon Fiber |
| End cap | Carbon Fiber |
| Finish | Yoshimura Works Finish |
| Weight | 8.0 lb (stock: 17.8 lb) |
| Yoshimura's dyno | +6.5% peak horsepower, +3.1% peak torque |
| Sound (J2825, with INS-20-K) | 93.6 dB at 2,000 rpm, 103.1 dB at 5,000 rpm (stock: 83.7 / 92.6 dB) |
| Made in | Chino, California |
| Sound inserts / spark arresters (sold separately) | INS-20-K, INS-35-K |
| Yoshimura part number | 14651AM221 |
| Use | Closed-course competition only; not shipped to California |
Ships to the lower 48 and DC. Returns accepted on most items.
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